<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script type="text/javascript" src="./js/vue.js"></script>
</head>
<body>
    <div id="app">{{msg}}</div>
</body>
<script>
    const vm=new Vue({
        el:'#app',
        data:{
            msg:"vue实例创建成功了"
        }
    })
    console.log(vm.msg);
    console.log("vm.$data.msg:"+vm.$data.msg);
</script>
</html>